If you look just above the eastern horizon at 7 p.m. tonight, you'll see a pretty optical illusion; Mars and our moon will appear as if they're very close together. Mars will actually be about 62 million miles away at the time. But it will be easy to spot; you'll see a yellowish-orange dot slightly above and to the left of the moon. Yes, Mars is known as the red planet. But Mars' hue changes a bit, as seen from Earth.